diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2022-11-25 00:26:05 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2022-12-05 22:22:33 +0100 |
| commit | b6d5fc3a5245c65f7c83440460a1566d09cc9038 (patch) | |
| tree | 6fb8a289f07a3253e51591e30df0422abab8436e /drivers/iommu | |
| parent | 15c72f824b32761696b1854500bb3dedccbbb45a (diff) | |
| download | linux-b6d5fc3a5245c65f7c83440460a1566d09cc9038.tar.bz2 | |
x86/apic/vector: Provide MSI parent domain
Enable MSI parent domain support in the x86 vector domain and fixup the
checks in the iommu implementations to check whether device::msi::domain is
the default MSI parent domain. That keeps the existing logic to protect
e.g. devices behind VMD working.
The interrupt remap PCI/MSI code still works because the underlying vector
domain still provides the same functionality.
None of the other x86 PCI/MSI, e.g. XEN and HyperV, implementations are
affected either. They still work the same way both at the low level and the
PCI/MSI implementations they provide.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20221124232326.034672592@linutronix.de
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/amd/iommu.c | 2 | ||||
| -rw-r--r-- | drivers/iommu/intel/irq_remapping.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c index 72dfe57f5802..67e209c2b7b1 100644 --- a/drivers/iommu/amd/iommu.c +++ b/drivers/iommu/amd/iommu.c @@ -812,7 +812,7 @@ static void amd_iommu_set_pci_msi_domain(struct device *dev, struct amd_iommu *iommu) { if (!irq_remapping_enabled || !dev_is_pci(dev) || - pci_dev_has_special_msi_domain(to_pci_dev(dev))) + !pci_dev_has_default_msi_parent_domain(to_pci_dev(dev))) return; dev_set_msi_domain(dev, iommu->msi_domain); diff --git a/drivers/iommu/intel/irq_remapping.c b/drivers/iommu/intel/irq_remapping.c index a914eba787ac..08bbf08f4b03 100644 --- a/drivers/iommu/intel/irq_remapping.c +++ b/drivers/iommu/intel/irq_remapping.c @@ -1107,7 +1107,7 @@ error: */ void intel_irq_remap_add_device(struct dmar_pci_notify_info *info) { - if (!irq_remapping_enabled || pci_dev_has_special_msi_domain(info->dev)) + if (!irq_remapping_enabled || !pci_dev_has_default_msi_parent_domain(info->dev)) return; dev_set_msi_domain(&info->dev->dev, map_dev_to_ir(info->dev)); |